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Free SEO Tools

Every tool here runs entirely in your browser. Nothing you paste is uploaded, logged, or rate-limited. Built because we got tired of "free" tools behind email walls.

AI search 3 live

llms.txt Generator Build a spec-compliant llms.txt file that tells AI engines what your site is and which pages matter.
AI Bot Blocker (robots.txt) Pick which AI crawlers to allow or block (GPTBot, ClaudeBot, PerplexityBot, and more) and get the robots.txt rules.
AI Writing Tell Checker Paste your text and catch the vocabulary, structures, and rhythm patterns that make writing read machine-generated.

On-page & meta 18 live

SERP Snippet Preview See exactly how your title and description render in Google results, desktop and mobile, before you publish.
Title Tag Pixel Width Checker Google truncates titles by pixels, not characters. Measure yours against the real 580px desktop limit.
Meta Description Length Checker Check description length in pixels and characters against desktop and mobile truncation points.
Meta Tag Generator Fill a form, get a clean copy-paste head block: title, description, robots, canonical, and social tags.
Open Graph Tag Generator Generate og: tags with a live Facebook/LinkedIn share-card preview as you type.
Twitter/X Card Generator Build summary and large-image card tags with a live preview of how the post will look.
Canonical Tag Generator Generate correct rel=canonical tags and catch the classic mistakes: relative URLs, http/https mixes, trailing slashes.
Hreflang Tag Generator Build a complete, reciprocal hreflang set for every language/region pair, with x-default handled.
Meta Robots Tag Generator Compose index/noindex, follow/nofollow and the long tail of robots directives without memorizing them.
Heading Structure Analyzer Paste HTML, get your H1–H6 outline as a tree with skipped levels, duplicate H1s, and empty headings flagged.
Keyword Density Checker Count term frequency and density across your copy, with 1–3 word phrases ranked.
Keyword in Title & Description Checker Verify your target keyword actually appears in the title, description, H1, and URL.
Image Alt-Text Auditor Paste HTML and get every <img> listed with missing, empty, or stuffed alt attributes flagged.
On-Page SEO Checklist An interactive, save-as-you-go checklist covering every on-page factor that matters in 2026.
Word Count & Content Length Checker Words, sentences, paragraphs, and reading time, with sentence-length variance for readability.
Above-the-Fold Content Analyzer Estimate what content survives above the fold at common viewport sizes.
Meta Tag Extractor Paste HTML and extract every meta tag, OG tag, and canonical into a readable table.
Duplicate Title & Meta Finder Paste a list of URLs + titles and find duplicates and near-duplicates instantly.

Structured data 13 live

Schema Markup Generator Generic JSON-LD builder for any schema.org type, with copy-paste output.
FAQ Schema Generator Turn questions and answers into valid FAQPage JSON-LD.
Article Schema Generator Generate Article/BlogPosting JSON-LD with author, dates, and image handled correctly.
LocalBusiness Schema Generator NAP, hours, geo, and sameAs wired into valid LocalBusiness JSON-LD.
Product Schema Generator Product JSON-LD with offers, price, availability, and ratings.
Breadcrumb Schema Generator BreadcrumbList JSON-LD from a simple list of names and URLs.
Review & AggregateRating Schema Generator Valid review markup without the policy violations that get rich results revoked.
Event Schema Generator Event JSON-LD with dates, venue, tickets, and online-event support.
Recipe Schema Generator Recipe JSON-LD with ingredients, steps, times, and nutrition.
Video Schema Generator VideoObject JSON-LD for self-hosted and YouTube videos.
Organization Schema Generator Organization JSON-LD with logo, sameAs profiles, and contact points.
HowTo Schema Generator Step-by-step HowTo JSON-LD with tools, supplies, and per-step images.
Schema / JSON-LD Validator Paste JSON-LD and catch syntax errors and missing required properties before Google does.

Reporting & analytics 5 live

SEO Agency Pricing Calculator What should SEO cost? Model retainer, hourly, and project pricing against your market, scope, and competition.
SEO ROI Calculator Model traffic, conversion, and revenue against SEO spend to get payback period and ROI.
Traffic Value Estimator Volume × CTR × CPC — what your organic rankings would cost in paid ads.
Keyword-to-Conversion Forecaster Forecast leads and sales from a keyword's volume, your CTR by position, and conversion rate.
CTR Calculator Impressions and clicks in, CTR out, benchmarked against position-level averages.